INSPECTING ARCHIVED INTELLIGENCE (OUTDATED VERSION).

Hyundai Exposes Customer Personal Information in E-Wallet Hacking Incident

| 2026-10-31 14:39 HIGH LOW DATA BREACH
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Executive Summary
AI-generated
On October 30, Hyundaiijiwell and Hyundai ESS announced a data breach incident due to external hacking that resulted in the disclosure of customer personal information. The attackers accessed the member information inquiry interface (API) abnormally, causing an abnormal access to the API by an external party occurred on October 29 around 9 pm. The leaked personal information includes name, date of birth, gender, mobile phone number, ID, email, and address, totaling seven items. Hyundaiijiwell stated that it detected abnormal access to the member information inquiry API immediately after confirming the incident, blocked all external access to the system, reported the incident to the Financial Supervisory Service and KISA (Korea Internet & Security Agency), and is cooperating with related institutions to investigate the incident circumstances and scope of personal information disclosure.
Technical Mitigations AI-generated
• Patch the member information inquiry API to fix the vulnerability that allowed unauthorized access. • Detect abnormal access to the system by monitoring IP addresses and system logs in real-time. • Block all external access to the system immediately after detecting abnormal activity.
Intelligence Metadata
Actors / Malware / CVEs / Campaigns
Target & Sectors
KR
Incident Timeline
‎October 29
Threat actors used unknown methods to target Hyundai E-Wallet's member information inquiry API on October 29.
general_metric 9 pm
Hyundaiijiwell stated that it detected abnormal access to the member information inquiry API on October 29, around 9 pm.
‎October 30
Threat actors used an external party to access Hyundai E-Wallet's member information inquiry API, resulting in the disclosure of customer personal information.
‎2026/10/31
Threat actors accessed the member information inquiry interface (API) of Hyundai E-Wallet, allowing them to disclose customer personal information.
organisation Hyundai
Hyundai E-Wallet hacking incident exposes customer personal information, including name, date of birth, ID, address, and seven other items..
organisation API
The attacker accessed the member information inquiry interface (API) abnormally and the company confirmed that the actual disclosure of personal information was true.
organisation IP
The company blocked the IP address used by the attacker and blocked all external access to the system immediately after confirming the incident.
organisation the Financial Supervisory Service
The company reported the incident to the Financial Supervisory Service and KISA (Korea Internet & Security Agency).
organisation KISA
The company reported the incident to the Financial Supervisory Service and KISA (Korea Internet & Security Agency).
organisation Korea Internet & Security Agency
The company reported the incident to the Financial Supervisory Service and KISA (Korea Internet & Security Agency).
Intelligence Sources
Dailysecu 2026-10-31